Algebra Figure-Outter Puzzle

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Across
  1. 2. the data point found most often in a set of numbers
  2. 5. a transformation of a figure by turning it about a center point or axis
  3. 7. Angle an angle whose measure is exactly 90 degrees
  4. 8. angle an angle with a measure of more than 90 degrees but less than 180 degrees
  5. 9. the point at which two lines meet
  6. 12. any of the four regions formed by the axes in a rectangular coordinate system
  7. 14. the amount of space occupied in three dimensions and expressed in cubic units
  8. 15. the inside region of a two-dimensional figure measured in square units
  9. 19. Lines two lines in the same plane that never meet and have an equal slope
  10. 20. Theorem the square of the hypotenuse (c) of a right triangle is equal to the sum of the square of the legs (a and b), as shown in the equation c^2=a^2+b^2
  11. 21. an increase in size in all directions by a uniform amount
Down
  1. 1. the middle point of a set of ordered numbers where half are below it and half are above
  2. 3. any symbol that could represent a number
  3. 4. Table a table which shows how many times a value occurs in a given interval
  4. 6. a bar graph in which numerical data values are organized into equal intervals
  5. 9. Number a real number that can not be expressed as a ratio of two numbers
  6. 10. Angles two angles, the sum of which is exactly 90 degrees
  7. 11. Angle an angle with a measure of less than 90 degrees
  8. 13. figures or objects that are the same shape and the same size
  9. 16. the average of a set of ordered numbers where half of the numbers are above the median and half are below it
  10. 17. the number of times the base occurs as a factor
  11. 18. a line segment from any point on the circle passing through the center to another point on the circle